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/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#pragma once
#include <AK/Forward.h>
#include <AK/StdLibExtras.h>
#include <LibGfx/Orientation.h>
#include <LibIPC/Forward.h>
#include <stdlib.h>
namespace Gfx {
class IntRect;
class IntPoint {
public:
IntPoint() { }
IntPoint(int x, int y)
: m_x(x)
, m_y(y)
{
}
int x() const { return m_x; }
int y() const { return m_y; }
void set_x(int x) { m_x = x; }
void set_y(int y) { m_y = y; }
void move_by(int dx, int dy)
{
m_x += dx;
m_y += dy;
}
void move_by(const IntPoint& delta)
{
move_by(delta.x(), delta.y());
}
IntPoint translated(const IntPoint& delta) const
{
IntPoint point = *this;
point.move_by(delta);
return point;
}
IntPoint translated(int dx, int dy) const
{
IntPoint point = *this;
point.move_by(dx, dy);
return point;
}
void constrain(const IntRect&);
bool operator==(const IntPoint& other) const
{
return m_x == other.m_x
&& m_y == other.m_y;
}
bool operator!=(const IntPoint& other) const
{
return !(*this == other);
}
IntPoint operator-() const { return { -m_x, -m_y }; }
IntPoint operator-(const IntPoint& other) const { return { m_x - other.m_x, m_y - other.m_y }; }
IntPoint& operator-=(const IntPoint& other)
{
m_x -= other.m_x;
m_y -= other.m_y;
return *this;
}
IntPoint& operator+=(const IntPoint& other)
{
m_x += other.m_x;
m_y += other.m_y;
return *this;
}
IntPoint operator+(const IntPoint& other) const { return { m_x + other.m_x, m_y + other.m_y }; }
IntPoint& operator*=(int factor)
{
m_x *= factor;
m_y *= factor;
return *this;
}
IntPoint operator*(int factor) const { return { m_x * factor, m_y * factor }; }
IntPoint& operator/=(int factor)
{
m_x /= factor;
m_y /= factor;
return *this;
}
IntPoint operator/(int factor) const { return { m_x / factor, m_y / factor }; }
String to_string() const;
bool is_null() const { return !m_x && !m_y; }
int primary_offset_for_orientation(Orientation orientation) const
{
return orientation == Orientation::Vertical ? y() : x();
}
void set_primary_offset_for_orientation(Orientation orientation, int value)
{
if (orientation == Orientation::Vertical)
set_y(value);
else
set_x(value);
}
int secondary_offset_for_orientation(Orientation orientation) const
{
return orientation == Orientation::Vertical ? x() : y();
}
void set_secondary_offset_for_orientation(Orientation orientation, int value)
{
if (orientation == Orientation::Vertical)
set_x(value);
else
set_y(value);
}
int dx_relative_to(const IntPoint& other) const
{
return x() - other.x();
}
int dy_relative_to(const IntPoint& other) const
{
return y() - other.y();
}
// Returns pixels moved from other in either direction
int pixels_moved(const IntPoint& other) const
{
return max(abs(dx_relative_to(other)), abs(dy_relative_to(other)));
}
private:
int m_x { 0 };
int m_y { 0 };
};
const LogStream& operator<<(const LogStream&, const IntPoint&);
}
namespace IPC {
bool encode(Encoder&, const Gfx::IntPoint&);
bool decode(Decoder&, Gfx::IntPoint&);
}
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